Safety switch for secondary battery module for electric vehicle and charging and discharging system for secondary battery module for electric vehicle using the same

摘要

A safety switch of a secondary battery module for an electric vehicle includes a cutting member attached to one surface of one secondary battery cell in the secondary battery module for the electric vehicle configured by connecting at least two secondary battery cells and having a cutting body and a cut member attached to one surface of the other secondary battery cell while facing the cutting member and including a cut body configured to approach the cutting body of the cutting member and be cut by the approaching cutting body to electrically disconnect the secondary battery cells, when the secondary battery cells are expanded due to the swelling phenomenon.